參數(shù)資料
型號(hào)： TSL2550T
廠商： TAOS Inc.
英文描述： AMBIENT LIGHT SENSOR WITH SMBus INTERFACE
中文描述： 常溫與SMBus接口光傳感器
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 280K
代理商： TSL2550T
TSL2550
AMBIENT LIGHT SENSOR
WITH SMBus INTERFACE
TAOS029L
OCTOBER 2007
1
The
LUMENOLOGY
Company
Copyright 2007, TAOS Inc.
www.taosinc.com
Converts Light Intensity to Digital Signal
Infrared Compensation to Approximate
Human Eye Response
Companding A/D for Wide Dynamic Range
Rejects 50 Hz/60 Hz Lighting Ripple
Two-Wire SMBus Serial Interface
Single Supply Operation (2.7 V to 5.5 V)
Low Active Power (1 mW typ)
Power Down Mode
Low-Profile Surface-Mount Packages
RoHS Compliant
Description
The TSL2550 is a digital-output light sensor with
a two-wire, SMBus serial interface. It combines
two photodiodes and a companding analog-to-
digital converter (ADC) on a single CMOS
integrated circuit to provide light measurements
over an effective 12-bit dynamic range with a
response similar to that of the human eye.
The TSL2550 is designed for use with broad wavelength light sources. One of the photodiodes (channel 0) is
sensitive to visible and infrared light, while the second photodiode (channel 1) is sensitive primarily to infrared
light. An integrating ADC converts the photodiode currents to channel 0 and channel 1 digital outputs. Channel
1 digital output is used to compensate for the effect of the infrared component of ambient light on channel 0
digital output. The ADC digital outputs of the two channels are used to obtain a value that approximates the
human eye response in the commonly used unit of Lux.
This device is intended primarily for use in applications in which measurement of ambient light is used to control
display backlighting such as laptop computers, PDAs, camcorders, and GPS systems. Other applications
include contrast control in LED signs and displays, camera exposure control, lighting controls, etc. The
integrating conversion technique used by the TSL2550 effectively eliminates the effect of flicker from
AC-powered lamps, increasing the stability of the measurement.
Functional Block Diagram
SMBCLK
Two-Wire Serial Interface
Integrating
A/D Converter
Control Logic
Output Registers
SMBData
V
DD
= 2.7 V to 5.5 V
Channel 0
Photodiode
Channel 1
Photodiode
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road Suite 300 Plano, TX 75074 (972) 673-0759
8 SMBData
7 NC
6 NC
5 SMBCLK
PACKAGE D
8-LEAD SOIC
(TOP VIEW)
V
DD
1
NC 2
NC 3
GND 4
PACKAGE T
4-LEAD SMD
(TOP VIEW)
V
DD
1
GND 2
4 SMBData
3 SMBCLK
相關(guān)PDF資料
PDF描述
TSL2550 AMBIENT LIGHT SENSOR WITH SMBus INTERFACE
TSL2560 LIGHT-TO-DIGITAL CONVERTER
TSL2560CS LIGHT-TO-DIGITAL CONVERTER
TSL2560T LIGHT-TO-DIGITAL CONVERTER
TSL2561 LIGHT-TO-DIGITAL CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TSL2550T-CUT TAPE 制造商:AMS 功能描述:TSL2550 Series 100 kHz 5.5 V Ambient Light Sensor w/ SMBus Interface - T-4
TSL256 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic
TSL2560 制造商:TAOS 制造商全稱:TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS 功能描述:LIGHT-TO-DIGITAL CONVERTER
TSL2560CL 功能描述:光學(xué)數(shù)位轉(zhuǎn)換器 Ambient Light Sensor SMBus RoHS:否 制造商:ams 數(shù)據(jù)總線寬度: 峰值波長(zhǎng):470 nm 最大工作頻率: 工作電源電壓: 工作電流: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:Chipscale-6 封裝:Reel
TSL2560CS 功能描述:光學(xué)數(shù)位轉(zhuǎn)換器 Ambient Light Sensor Light to Digital RoHS:否 制造商:ams 數(shù)據(jù)總線寬度: 峰值波長(zhǎng):470 nm 最大工作頻率: 工作電源電壓: 工作電流: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:Chipscale-6 封裝:Reel
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